1. Fry onion and leek, cool.,______,3. In separate bowl, sift flour, mix with baking powder, oat flakes, cumin, salt, black pepper.,4. Add dry ingredients, bit by bit into egg mixture.,5. In the end add fried leek and onion, ham and grated cheese.,6. Grease muffin baking pan, pour in dough.,7. Bake about 25 min, in preheated oven, in 180 C degrees.